Buffing-machine.



` E. A. KUEN.

BUFFING MACHINE.

APPucATloN FILED APR. 11. 191s.

`Patented July 24,1917.

4 SHEETS-SHEET 1- w fl mm M E. A. KUEN.

BUFFING MACHINE. APPLICATION `FILED APR. I1. IBIS.

Patented July 24, 1917 4 SHEETS-SHEET 2.

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BUFFING MACHINE.

APPLlcAnoN FILED APH. n. 191s.

Patented July 24, I1917' 4 SHEETS-SHEET 3.

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BUFFING MACHINE. APPLICATION FILED APR. H, 1916.

1,234,351 4 Patented July 24, 1917.

4 SHEETS-SHEET 4.

'UNITED STATES PATENT OFFICE.

EUGENE A. KUEN, 0F CINCINNATI, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, lT0 THE CORCORAN-VICTOB COMPANY, OF GINCINNATI, OHIO, A CORPORATION OF OHIO.

BUFFING-MACHINE.

Specification of Letters Patent. Patente d July 24, 191 7.

Application tiled April 17, 1916. Serial No. 91,633.

To all whom t 'may concer-fn lie it known that LEUonNn A. KUEN, a

citizen ot the United States, residing at' ln the present eXelnphtlcation, my invention is applied iu hailing the.. outer sui-taco of a bond-shaped or [nti-abolie article, e'X' cmpliied as the body of a lamp adapted to receive a parabolic reflector,` the body being substa/ntially ol' parabolic form having an outwardly Haring end adjacentto its base.

l't is the object of my invention to provide means, in hailing maehin'es whereby the outer surfaces of bovvl-shalied or parabolic formed articles may be huled, that is, abraded or polished, by means of a bnfiingwheel.

'lhc invention consists in providing a hcad or heads arranged to have the article to be lmifcd applied thereto` and novel means. for causing movement ot' the head with relation lo the hailing-wheel 'for causing the head to aidomatically shift according to its ornr with relation io the hailing-wheel for contact oi' .smfccssive points in its outer periphery with thx` hull'ing-ivhcel; further in novel means` whereby to rotate and to reciprocate the heads in a plurality ot' directions during the lmliing operation: tin-ther, in novelmeans tor yieldabiy mounting thehead and causing approach of the yieldably mounted head lo operative position with relation to thc honing-wheel and recession of the head away from its operative position for the ready attachnient of the bowl-shaped or parabolic article to or removal of the same lrom the head or heads; further,r in novel means ywhereby different shapes or contours ot articles may; be readily attached with their inner faces about the head for coaction with the bufling-wheel; and, further, in novel means vyvherel'iy the relation betweena yieldahle article-lnail and a hufling-wheel is adjusted crosswise of` the axial line of the article for coactlon of the article with the boiling-wheel.

The invention willbe further readily understood froinfthe following description and claims, and from the drawings, in which latter: i. Figure 1 represents a plan View of my improved device.`

Fig. 2 is a horizontal section taken on the line 2 2 Iof Fig. 3, representing the gearing' for rotating and reciprocating the heads.

Fig. 3 isa rear sideelevation of my improved device.

Fig. 4 is a' front side elevation of the ,positioning means for the carriage of my improved device, showing the iever for shift- .ing the :arriage in full lines for operative position ot the carriage. and in dotted lines folmretractive position ot' the carriage. Fig; 5 is a. front end elevation of my improved device, partly broken away, with the bniling-whecls nand stands removed.

Fig. G is a vertical section of the head, taken on the line 644' of Fig. 5, showing the article clamped thereon and in full lines in position when about to make contact with the bufting-wheeh and in dotted lines in positions assmned during the reciprocating moven'lent inthe bniiing operation.

Fig. 7 is a plan View of the same taken in the direction ot' the line 7.-7 of Fig. G.

Fig. S is an axial section of the articleholder arranged for diiferently sized articles. y

Fig. 9 is a cross-smstion taken on the line 9 9 of Fig. G, showing a rear view of the head, for showing the clamping means for the article.

Fig. 10 is a cross-sectiomtl detail of the same taken on the line 10--10 of Fig. 9.`

Fig. 11 is a longitudinal sect-ion of the same taken on the line 11-11 of Fig. 10.

Fig. 12 is a detail in cross-section, on the lille 12-12 of Fig. 3, showing the means for adjusting the crank controlling the reciprocating movements of the heads.

F 1g. 13 1s a l'iorizontal section, taken on the line 13-13 of Fig. f3, showing the means for adjusting the saddle.'

21 represents a frame, on which a saddle E22 is adjustable up and down.y as by means of having a screw-rod 23 txemcl to thesaddle and depending tlierei'iolm passing journalwise into or through a bearing 2l `in the l frame, an adjustingV nut Q5. having threadel'l spo rio

y be rotated by arms 26 Jr'or raising and lowering the saddle.

The saddle `has up and down movement 1n guideways 27 between the saddle amlwtranle.

vTie-rods 28 extend between the sides 29 of the frame, `the sides being arranged to be clamped toward each other againstthe depending guides 30 of the saddle by means ot" nuts 31..

The saddle has guideways 34 on which a carriage 35 reciprocates. The carriage is arranged to support one or more heads 36, twol of these heads being shown. Means are providedfor 4reciprocating the head or heads with' relation to a boiling-wheel 37, two of these batting-Wheels being shown. It is to be understood that one of the heads and lending-Wheels 'may be employed in carrying out my'invention, or a pair of-them may, as exemplified, be employed for simultaneous coperating relationsr The head is arranged to have the article to bebuffed applied thereto, and means are provided for rotating the article during the bufling action, so that simultaneous reciprolcation and rotation is imparted to the article during the buiiing operation. The article is `further arranged to yield with relationto the buing-Wheel during its reciprocation, so

vthat `the successive points in the contour of the article may make contact with the bud'- ing-Wheel, and the article moved toward and from the hailing-wheel in its path ot recip- 1 y rocation, according to the contour of the .ar-

ticle. I prefer that this approach and recession in the path of reciprocation shall. be

`resilient, and l have exemplified the same as accomplished by a counter balance.

The hunting-wheel, represented at?, is arranged to rotate preferably in the direction of -the arrow 38. v

' The article being bui'ed is exemplified as the body 39 of a headlight or vehicle. lamp, such as used, for instance, Yon automobiles, the body being oi" general paraboli-c form, comprising, for instance, a *rounding 32) at its apex end, an annular outwardly bulged portion 39", an annular outwardly Haring olftion 39"' at its base end, there being au' bodies of dili'erent sizes and shapes. The

outer faces of the holders are arranged to l fit snugly in the inner-faces ot the formed the portions 39band 39C when drawn to shape, shows lines resulting'from the stretch ing and shaping of the metal and lines 4occasioned by contact with the dies, the former'showing as protuberances and the latter as streaks. The object of the buiiing, which in the present instance. is what might be termed an abrading action, accomplished by the b uiing-wheel and l a suitable abrading grit-paste, is to grind. out these irregular surfaces and provide the outer periphery of the body or article with a regular surface, so as to properly receive a suitable coating, for instance a japan, and permit polishing of the same, for causing it to show a regular surface when finished.

An annular-ly arranged expansion-band 42 on the holder coacts with the cylindrical p0r- `tion 39e of the body. The expansion-band rotates with the holder. It is received in an annular recess 43 of the holder and is held. therein by means of clips 44 secured to the holder by means of screws 45 for ready insertion or removal of the expansion-band'. A pin 46 in the holder is received vin a hole 47 in the expansion-band for causing rotation'of the latter with the holder.

A spreader 48 is located between the proximate en ds of the expansion-band and is Nprovided with cams 4f). The spreader is rockvable in bearings 50, 5l, on the holder, the

bearing 51 being on a bearing-piece 52 rei leasably secured to the holder, as by screws 53. An arm 54 is fast to the shaft 55 of the sprea der for turning the spreader and causing the cams 4.9 to contact the ends ot' the expansion-band for expanding the latter into contact with the cylindrical qportion BQCKot the body 39, for clamping the body to the head. Upon rocking the spreader for disengagement of the cams with the expansionband, the expansion-band will contract toward the axis ot' the holder and release the body.

The expansion-band and caan-sln'eader` may be removed from one holder and used on another holder whose base is of equal diameter, but whose apex end is oi diiierent form, and is therefore interchangeable with holders whose bases are oi equal diameters. Reclprocating-motlon is caused between thel article, andthe ln1fling-wheeh I prefer to have the article reciprocate as the baitingwheel'jis rotated at high speed and requires comparatively highpower to rotate the same. at the speed required for the bufling koperetion. v Y

For rotating and reciprocating the'head I tween them for causing their combined ro tation, and operated in suitable manner by a suitable driving agency.

The bevel-'gear (31 meshes with a bevelgear which is fast ou a hollow hub 71 iournaled in a bearing 72 of the carriage.

j .The hollow hub has a bevel-gear 73 fast thereon. A shaft 75 has spline-connection 70 with the hollow hub 71 for causing the shaft to rotate with the bevel-gears. A sleeve '77 surroundsl the shaft, the'shaft being rotatable in the sleeve and the sleeve sliding longitudinally in a bearing 7S on the carriage. The l'iear'l-t'rame 70 is fixed to the sleeve, as by set-bolts and slides on a guideivay 81 onl a bracket 82, extending from the carriage 35, the head-frame being thereby prevented from turning.

A.bevel-gear 84 is fixed to the shaft 75, as by a set-bolt 85, thc shaft and sleeve being relatively lengthwise, positioned at the other end of the sleeve by means of' the hub of the bevel-gear S4 and a collar 86 fixed to the sliait`by a. set-bolt 87. The outer end of the shaft is jouriialed in a bearing 88 in the headdirame. The bevel-gear 84 meshes with a pair of bevel-gears 93. Each of the vbevelgears 0,3 is fixed on a shaft 04 journaled in a bearing 05 of a head-yoke 00. The head 10 comprises a movable support 90 for the head, shown as a. pivoted bearing-piece comi'irisiiig a bearing 100 and arms 101. Une of the arms 101 is pivoted, as'by a shoulderbolt 102 to one of the tines 103 of the headyoke, the other of the arms 101 being secured, as by a. set-bolt 104, to a. pivot-shaft 105, pivoted in the other of the tines 101, and having an arm 100 rigidly secured thereto and extending therefrom, the armar- 1anged to carry weights 107 exemplified as suspei'idr-id Atherctrom by means of a cable 108 and releasalily received about the cable for adjusting the pressure oiu thc/headv toward the bulling-wheel.

By these meansl a movable support for the head vis arranged to f-fwingingly support the head and to permit yielding of the head` Ari adjustable stop 110 is provided for determining the normal position of the head, the adjustable stop being shown in the form of a stop-bolt threaded in a lug 111 of the head-yoke and arranged to bear against a lug 112 exteiidingfrom the movable suport, p A. sliat114 is .journaledin the bearing 100. Theholders 41 are arranged to be interchangeably secured to the end of this shaft, as by being )rovided with a bore 115, in which the end oi the shaft is received, the holder being secured to theV shaft by means oi' a set-'bolt 116. A universal joint 117 is located between the shafts 114 and 94 for communicating rotation from the shaft 94 to the shaftV 114 regardless of the angular positions of the movable member of the head. The articulation ofy the universal joint 117 is substantially in the plane of the pivotal ,axis of thepivoted 'member of the head. 4

When the holder is reciprocated inl work position, the iirticle 39 being biiiled is moved toward the baiting-wheel 37 in a line .parallel to the plane of movement of the carriage 35, contact being made by the article at or adjacent to its apex with the periphery of theI hailing-wheel, contact with the bulling-wheel being made preferably at a point below the plane, parallel to the plane of movement ofi the carriage in which thc axis of' rotation of the buffing-wheel is located. This contact is preferably made with the body at one side of its principal axis, indicated by the dotted line 39g.

As thearticle-head and body approach the buliing-wheel, the head and body yield to causeasuccessive points on the outer face ol the body to contact the bufling-whcel, the amount of this yield being determined by the outer peripheral form or face-contour oli-the body, the weighting of the head causing suflicicnt pressure of the head toward the bufling-wh'cel to cause proper abrasive or polishing action upon the body. The amount of this pressure may he regulated by the employment of more or less of the weights. The various positions of the head during the progressive movement thereof toward the builing-wheel are exemplified by the dotted lines 39* and 30 in Figs. (l and 7 the direction of movement of the head being` in the direction of the arrow 39m.

`The bevel-gear 73 meshes with a bevelgear 121 jiuirnalcd on a stub-shaft 122 fixed in a. bearing 123 in the carriage. A spurgear 124 fast with the bevel-gear 121 meshes with a. gear 125 on 'a`crank-plate 126, which has a crank-pin 127 `adjustable thereon toward andfrom the axis of the crank-plate, as by locating the saine on a slide-block 128 adjustable in a. T-slot 120 in the crankplate, and clamped in position by a T-blt 130 and nut 131.

A connecting-rod 133 is journaled in a bearing 134 about the crank-pin, the other end of the connecting rod being received in abearing 135, in which itis suitablyisecured, as by a pin 136. The bearing 135 is on a bearing-piece 137, which has a 'bearing 13 8 rio tween the bearing 1538 and the bearing 140,

,the rod at the other side of the bearing 138- being provided with a collar 144 suitably secured thereto, as by a pin 145, for preventin movement of the bearing 138 off the rod. he reflector is held toward the bufling. Wheel by means of the spring 143, which forms an additional resilient cushion for the head.

The eccentric or cranklpin 127 is adjustable, toward and from the axis of the crankplate for adjusting the length of the path of movement of the head-yoke, the head1 yoke in. this movement being slidable forvhaving a screw-rod 15G secured thereto at 157, a nut 158 being threaded about the screw-rod and havinga handle 159 thereon. V

Lengthwise movement of the nut is prevented by having a fork 160 fast to the saddle, as by bolts 161, received in an annular groove 162 in-the niit. Turning of the nut will move the .slide 154 quickly 'toward and from the position of the biiilingwheel, and when in proper adjusted position' it is arranged to be clamped to the guide ways'by means of set-bolts 163.

The. lever 151 has articulation at 164 with a link 165 having an articulation at 166 with the carriage. When. the lever 151 is swung upwardly and rearwardly on its pivot 153, its articulation 164 with the link 165 will move back with the lever and draw the carriage, together with the operating parts and heads mounted thereon, away from the bufling-.Whee], the ,assumed position of the lever .in the latter relation being' indicated in dotted lines in Fig. 4, which positioning of the Vcarriage may take' place during con;

tinued automatic reciprocation thereof.

Whenl the lever ismanipulated for moving the Vhead-part toward the bufiing-wheel, the axis of its articulation ,164 is4 below a right line 'intersecting the axis of the pivot 153 and articulation 166, a stop 167 ontheI lever' 151 being arranged to strike the link when in such relation, whereby the unintentional retraction of the carriage through the medium 'of the link or lever is prevented, as this relation of the axes forms a locking relation against la strain tending to buckle the' link and leverand said head.

Adjustments are provided whereby the article may be raised or lowered, as by r 'sing or lowering the table, as hcreinbe- V fore described; and whereby relative lateral adjustment may be accomplished between the article and the buiiing-wheel, instanced as accomplished at the buiiing-wheel by means to be presently described, for adjusting the relations between the head and biifiing-wheel for insuring the desired buffiiig contact therebetween and the necessary range of such contact; and means are further provided whereby the article is yieldingly held toward the ybidling-wheel, so as to move toward and from the biifiingwheel according tothe contour of its outer periphery, as instanced by the weight mechanism hereinl'iciore described.

-These adjustments accommodate various sizes and shapes of articles, and Various sizes and shapes of articles are conveniently attached to the heads by having the holders thereon imei-changeable.

The lateral adjustment of the buiiingwheel, for adjusting the same laterally with relation to the principal axis of the body or article to be bii'li'ed, is preferably accomplished by axial adjustment of the builingwheel shaft 171. The biillii'ig-wheel hasa borg` 172 received over 'the reduced end 173 of 6, .fshaft and is arranged to be clamped between flanges 174Cv by means oi a clamp- 111117175, bufiing-wheels of desired diameters and kinds being interchangeably clamped in place. The hinting-wheel shaft is journaled iii bearings 176, and is rotated by a suitable rotating agency, for instance a pulley 177. The pulley is arranged to be adjustably secured to the shaft, as by means of a set-bolt 178. When it is desired to adjust the biilfiigwheel laterally, the set-bolt 178 is loosened,

the shaft positioned endwise, and the iilley secured thereto in adjusted position )y resetting,r the set-bolt 178.

Having thus full y described my invention, what I claim as new and desire to secure by Letters'latent, is

1. In ainachine of the character described, the combination of an article-head comprising an article-holder, means for automatically reciprocating said article-head, means for yielding movement of said articleholder by pressure by a buiing-wheel uponr the article carried thereby, whereby said article-holder automatically accommodates itself with relation to the buHing-wheel according to the contours of the form of the article carried by said article-holder, and an adjustable stop for limiting retriietionot said article-holder Vfrom its yielding movement.

2.1n a machine of4 -the character described, the combination of :in articlc-head comprising an article-holder,'means for aiitomatieally reciprocating said article-head, means for, yielding movement of said article-holder by pressure by a hailing-wheel upon the article carried thereby, whereby said article-holder automatically accommodates itself with relation to the buflingwheel according to thc contours of the form of the article carried by said article-holder, and means for adjusting the path of said reciprocating movement. y

8. In a machine of the character described, the combina-tion with a bufling- Wheel, of an article-holder, means for automatcally reciprocating said article-holder toward and from said boiling-wheel in a path oblique to the axis of rotation of said buling-whecl, n'leans for yielding movement of said article-holder by pressure by a bufing-whecl on the article carried thereby, whereby said. article-holder automatically accommodates itself with relation to the bnfing-whcel accordingr to the contours of the form of the article carried thereby, and moans for adjusting the lateral relation bctween said article-holder and said buli'ingwheel whereby the contact between the-ar ticlccarricd by said articlc-holder and Said lnlfiing-wl1cel is adjusted with relation to the axis of rotation of said article-holder.

Il. In a machine of the character de scribed, the combination of an a1'ticle-'l1cad con'iprising a resliently yielding pivoted article-holder and means for simultaneously rci'ziprocating said article-head and rotating said articlirholdcr.

In'-` a machine of the character described, the combination of an articledlead .frame comprising a pair of article-heads arranged `at angles with relation to each other., a resihently yleldin article-holder pivoted -in each of said artic eheads, and'mcans for baiting-Wheels, and means for reciprocating said head-framc in a path vat substantial right angles ,to said axesof rotation.

In a machine of the character de scribed, the combination of an article-head comprising an article-holder, means for automatically reciprocating said article-head,

means for yielding movement of said article-holder by 'pressure by a buliing-wheel upon the article carried thereby whereby said head automatically accommodates itself with relation to the buiing-Wheel according` to the contours of the form of the article thereon, and means for adjusting the path of said reciprocating movement.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses. y

EUGENE A. KUEN.

Witnesses: l

THERESA M. SILBER, CHARLES E. WEBER. 

